131230998 has 24 divisors (see below), whose sum is σ = 293507136. Its totient is φ = 42332400.

The previous prime is 131230993. The next prime is 131230999. The reversal of 131230998 is 899032131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117033 + ... + 118148.

It is an arithmetic number, because the mean of its divisors is an integer number (12229464).

Almost surely, 2^131230998 is an apocalyptic number.

131230998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

131230998 is an abundant number, since it is smaller than the sum of its proper divisors (162276138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131230998 is a wasteful number, since it uses less digits than its factorization.

131230998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235220 (or 235217 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 131230998 is about 11455.6098921009. The cubic root of 131230998 is about 508.1736520637.

The spelling of 131230998 in words is "one hundred thirty-one million, two hundred thirty thousand, nine hundred ninety-eight".